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Chez Phase 2 (inc S): atom watches + validators (jolt-mn9o)

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The Chez atom record gains watches (an alist of key->fn) and validator
slots. swap!/reset! now validate the candidate value before storing and
notify watches after, in the seed's order (core_refs.janet) — the watch fn
is called (key ref old new). compare-and-set!/swap-vals!/reset-vals! route
through reset!/swap! so they validate + notify too.

add-watch/remove-watch/set-validator!/get-validator are native here and
re-asserted in post-prelude.ss: the clojure.core overlay implements them via
jolt.host/ref-put! on (get atom :watches), a Janet-table mutation a Chez atom
record can't answer, so its def-var! would otherwise clobber these. set-
validator! validates the current value immediately (Clojure throws if already
invalid).

Parity 2150 -> 2154, 0 new divergences. New test/chez/_atomwatch.janet 10/10.

The (class x) native and the clojure.walk port were explored this increment
but deferred: class alone makes the String-class-token corpus cases emit-and-
run with a wrong value (the bare token doesn't resolve yet) — filed jolt-13zk
to land the native together with token resolution; clojure.walk is blocked on
list? + map-entry-as-vector (jolt-75sv).
This commit is contained in:
Yogthos 2026-06-19 04:33:07 -04:00
parent 1f96351acb
commit b7864100cb
4 changed files with 135 additions and 12 deletions
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6
test/chez/run-corpus-prelude.janet
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@ -240,8 +240,12 @@
# map member dispatch, and the seed's universal object-methods getMessage/getCause/
# toString/hashCode/equals. Also added getMessage/getLocalizedMessage/equals to the
# string method surface so a thrown string / Exception. ctor answers .getMessage) 2150.
# jolt-mn9o (atom watches/validators — the Chez atom record carries watches/
# validator slots; swap!/reset! validate-then-set-then-notify in seed order;
# add-watch/remove-watch/set-validator!/get-validator are native and re-asserted
# in post-prelude.ss over the overlay's ref-put!-on-a-Janet-table versions) 2154.
# Strided runs scale down.
(def base-floor (scan-number (or (os/getenv "JOLT_CHEZ_PRELUDE_FLOOR") "2150")))
(def base-floor (scan-number (or (os/getenv "JOLT_CHEZ_PRELUDE_FLOOR") "2154")))
(def floor (if (os/getenv "JOLT_CORPUS_LIMIT") 0 base-floor))
(when (or (> (length diverged) 0) (< pass floor))
(printf "REGRESSION: pass %d < floor %d or %d new divergence(s)" pass floor (length diverged)))